221132404231122 has 64 divisors (see below), whose sum is σ = 456676992286848. Its totient is φ = 71331285312000.

The previous prime is 221132404231117. The next prime is 221132404231129.

221132404231122 is nontrivially palindromic in base 10.

221132404231122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221132404231122.

It is not an unprimeable number, because it can be changed into a prime (221132404231129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30472497 + ... + 37024827.

It is an arithmetic number, because the mean of its divisors is an integer number (7135578004482).

Almost surely, 2^{221132404231122} is an apocalyptic number.

221132404231122 is an abundant number, since it is smaller than the sum of its proper divisors (235544588055726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221132404231122 is a wasteful number, since it uses less digits than its factorization.

221132404231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6553195.

The product of its (nonzero) digits is 9216, while the sum is 30.

It can be divided in two parts, 22113240 and 4231122, that added together give a palindrome (26344362).

The spelling of 221132404231122 in words is "two hundred twenty-one trillion, one hundred thirty-two billion, four hundred four million, two hundred thirty-one thousand, one hundred twenty-two".